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  /*
   * org.osjava.jardiff.ClassInfoVisitor
   *
   * $Id: IOThread.java 1952 2005-08-28 18:03:41Z cybertiger $
   * $URL: https://svn.osjava.org/svn/osjava/trunk/osjava-nio/src/java/org/osjava/nio/IOThread.java $
   * $Rev: 1952 $
   * $Date: 2005-08-28 18:03:41 +0000 (Sun, 28 Aug 2005) $
   * $Author: cybertiger $
   *
  * Copyright (c) 2005, Antony Riley
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  * + Redistributions of source code must retain the above copyright notice,
  *   this list of conditions and the following disclaimer.
  *
  * + Redistributions in binary form must reproduce the above copyright notice,
  *   this list of conditions and the following disclaimer in the documentation
  *   and/or other materials provided with the distribution.
  *
  * + Neither the name JarDiff nor the names of its contributors may
  *   be used to endorse or promote products derived from this software without
  *   specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 package org.osjava.jardiff;
 import java.util.Map;
 
 import  org.objectweb.asm.FieldVisitor;
 import  org.objectweb.asm.MethodVisitor;
 import  org.objectweb.asm.commons.EmptyVisitor;

A reusable class which uses the ASM to build up ClassInfo about a java class file.

Author(s):
Antony Riley
 
 public class ClassInfoVisitor extends EmptyVisitor
 {
    
The class file version.
 
     private int version;

    
The access flags for the class.
 
 
     private int access;

    
The internal name of the class.
 
     private String name;

    
The signature of the class
 
     private String signature;
    
    
The internal name of the superclass.
 
     private String supername;

    
An array of internal names of interfaces implemented by this class.
 
     private String[] interfaces;

    
A map of method signature to a MethodInfo describing the method.
 
     private Map methodMap;

    
A map of field signature to a FieldInfo describing the field.
 
     private Map fieldMap;
    
    
Reset this ClassInfoVisitor so that it can be used to visit another class.
 
    public void reset() {
         = new HashMap();
         = new HashMap();
    }
    
    
The the classInfo this ClassInfoVisitor has built up about a class
    public ClassInfo getClassInfo() {
        return new ClassInfo(,
                             );
    }
    
    
Receive notification of information about a class from ASM.

Parameters:
version the class file version number.
access the access flags for the class.
name the internal name of the class.
signature the signature of the class.
supername the internal name of the super class.
interfaces the internal names of interfaces implemented.
    public void visit(int versionint accessString nameString signature,
                      String supernameString[] interfaces) {
        this. = version;
        this. = access;
        this. = name;
        this. = signature;
        this. = supername;
        this. = interfaces;
    }
    
    public MethodVisitor visitMethod(int accessString nameString desc,
                                     String signatureString[] exceptions) {
        .put(name + descnew MethodInfo(accessnamedesc,
                                                  signatureexceptions));
        return null;
    }
    
    public FieldVisitor visitField(int accessString nameString desc,
                                   String signatureObject value) {
        .put(name,
                     new FieldInfo(accessnamedescsignaturevalue));
        return this;
    }
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